Patents by Inventor Ji-Hwan WOO
Ji-Hwan WOO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240147592Abstract: The present disclosure relates to a light emitting diode (LED) driving device that may expand a usable range of LED current and battery voltage by reducing heat generation of an integrated circuit, and an LED lighting device including the same, which may include a current controller that constantly controls an LED current flowing through an LED string and an IC heat dissipation part connected to a node between the LED string and the current controller to dissipate IC heat of the current controller, wherein when a battery voltage supplied to the LED string increases, the IC heat dissipation part reduces a first LED current flowing from the LED string to the current controller and simultaneously increases a second LED current flowing from the LED string to the current controller via the IC heat dissipation part, thereby reducing the IC heat generation of the current controller.Type: ApplicationFiled: November 1, 2023Publication date: May 2, 2024Applicant: LX SEMICON CO., LTD.Inventors: Byung Jun SEO, Ji Hwan KIM, Young Jin WOO, Jong Min LEE, Ju Pyo HONG
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Patent number: 11596159Abstract: A meat-aging apparatus is disclosed. The meat-aging apparatus comprises: a photographing unit for photographing meat stored in the meat-aging apparatus; an illumination unit for irradiating light to the meat; a storage unit for storing recipe information for aging the meat according to the type or state of the meat; and a processor for determining the type or state of the meat on the basis of a photographed image, and controlling the illumination unit to irradiate light to the meat according to the recipe information corresponding to the determined type or state of the meat in order to age the meat.Type: GrantFiled: December 30, 2016Date of Patent: March 7, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-wook Park, Soon-cheol Kweon, Jin-hoon Kim, Hong-il Kim, Han-gil Moon, Ji-hwan Woo
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Patent number: 11024083Abstract: A server is disclosed. A server for providing a content to a user terminal device providing a virtual reality service comprises: a communication unit for performing communication with at least one source device and the user terminal device; and a processor for, when a content transmission request for a preconfigured location is received from the user terminal device, receiving a content photographed in a real time from a source device of the preconfigured location on the basis of location information received from at least one source device, and providing the content to the user terminal device.Type: GrantFiled: December 3, 2015Date of Patent: June 1, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Do-wan Kim, Ji-hwan Woo, Han-il Yu
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Patent number: 10791316Abstract: Provided is a method for transmitting data about an omnidirectional image by a server. The method comprises the steps of: receiving, from a terminal, information about a viewport of the terminal; selecting, on the basis of information about the viewport and the respective qualities of a plurality of tracks associated with the omnidirectional image, at least one track among the plurality of tracks; and transmitting data about the selected at least one track to the terminal.Type: GrantFiled: January 30, 2018Date of Patent: September 29, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Eric Yip, Ji-Hwan Woo, Byeong-Doo Choi
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Patent number: 10755472Abstract: Methods and apparatuses are provided for transmitting information about an omni-directional image based on user motion information by a server. Motion parameters are received from an apparatus worn by a user for displaying an omni-directional image. User motion information is generated based on the received motion parameters. First packing information corresponding to a user position is generated based on the user motion information. Second packing information corresponding to a position in close proximity to the user position is generated based on the user motion information. Third packing information is generated based on the first packing information and the second packing information At least one of the first packing information, the second packing information, and the third packing information is transmitted to the apparatus.Type: GrantFiled: March 28, 2018Date of Patent: August 25, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Ji-Hwan Woo, Eric Yip, Byeong-Doo Choi, Dong-Wook Kwon
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Patent number: 10664948Abstract: A method and apparatus are provided for processing information about an omni-directional image. The method includes generating a first two-dimensional (2D) image projected from a first omni-directional image, by setting points on the first omni-directional image, which intersect a straight line passing through a first position that is a center of the first omni-directional image and a second position that is a center of a second omni-directional image, to a first pole and a second pole, generating a second 2D image projected from the second omni-directional image, by setting points on the second omni-directional image, which intersect the straight line passing through the first position and the second position, to a third pole and a fourth pole, and generating a third 2D image corresponding to a 2D image projected from a third omni-directional image centered in a third position between the first position and the second position, based on the first 2D image and the second 2D image.Type: GrantFiled: June 13, 2018Date of Patent: May 26, 2020Assignee: Samsung Electronics Co., LtdInventors: Ji-Hwan Woo, Byeong-Doo Choi, Eric Yip
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Publication number: 20200107007Abstract: Provided is a method for transmitting data about an omnidirectional image by a server. The method comprises the steps of: receiving, from a terminal, information about a viewport of the terminal; selecting, on the basis of information about the viewport and the respective qualities of a plurality of tracks associated with the omnidirectional image, at least one track among the plurality of tracks; and transmitting data about the selected at least one track to the terminal.Type: ApplicationFiled: January 30, 2018Publication date: April 2, 2020Inventors: Eric YIP, Ji-Hwan WOO, Byeong-Doo CHOI
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Patent number: 10545570Abstract: A method for processing virtual reality (VR) content by a content providing device includes identifying cartesian coordinates of a first position on the VR content, estimating a movement of a user of the content providing device, identifying cartesian coordinates of a second position by applying a matrix representing the estimated movement of the user to the cartesian coordinates of the first position, converting the cartesian coordinates of the second position into spherical coordinates of the second position, and providing an area corresponding to the spherical coordinates of the second position to the user.Type: GrantFiled: April 30, 2018Date of Patent: January 28, 2020Assignee: Samsung Electronics Co., LtdInventors: Ji-Hwan Woo, Byeong-Doo Choi
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Patent number: 10437055Abstract: A master device providing an image to a slave device providing a virtual reality service is provided. The master device includes: a content input configured to receive an input stereoscopic image; a communicator configured to perform communication with the slave device providing the virtual reality service; and a processor configured to determine a viewpoint region corresponding to a motion state of the corresponding slave device in the input stereoscopic image on the basis of motion information received from the slave device and control the communicator to transmit an image of the identified viewpoint region to the slave device.Type: GrantFiled: December 3, 2015Date of Patent: October 8, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Hwan Woo, Do-wan Kim, Han-il Yu
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Publication number: 20190187790Abstract: A vehicle display device and a control method thereof are provided. The present vehicle display device comprises: a camera for photographing a driver; a sensing unit for measuring the distance to an external object; a display for providing operating information of a vehicle; and a processor, which analyzes an image captured through a camera so as to track a driver's gaze, determines an external object present at the location at which the tracked driver's gaze is directed, calculates the distance to the determined object through the sensing unit, and controls the display such that the operating information is displayed on the basis of the driver's gaze and the distance to the object.Type: ApplicationFiled: August 7, 2017Publication date: June 20, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-hwan WOO, Young-yoon LEE, Won-hee CHOE, Se-hoon KIM, Seung-heon LEE, Kang-jin YOON, Hae-in CHUN
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Patent number: 10209513Abstract: A wearable device that is configured to be worn on a body of a user and a control method thereof are provided. The wearable device includes an image projector configured to project a virtual user interface (UI) screen, a camera configured to capture an image, and a processor configured to detect a target area from the image captured by the camera, control the image projector to project the virtual UI screen, which corresponds to at least one of a shape and a size of the target area, onto the target area, and perform a function corresponding to a user interaction that is input through the virtual UI screen.Type: GrantFiled: June 4, 2015Date of Patent: February 19, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Hwan Woo, Won-hee Choe
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Publication number: 20190008173Abstract: A meat-aging apparatus is disclosed. The meat-aging apparatus comprises: a photographing unit for photographing meat stored in the meat-aging apparatus; an illumination unit for irradiating light to the meat; a storage unit for storing recipe information for aging the meat according to the type or state of the meat; and a processor for determining the type or state of the meat on the basis of a photographed image, and controlling the illumination unit to irradiate light to the meat according to the recipe information corresponding to the determined type or state of the meat in order to age the meat.Type: ApplicationFiled: December 30, 2016Publication date: January 10, 2019Inventors: Dae-wook PARK, Soon-cheol KWEON, Jin-hoon KIM, Hong-il KIM, Han-gil MOON, Ji-hwan WOO
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Publication number: 20180365798Abstract: A method and apparatus are provided for processing information about an omni-directional image. The method includes generating a first two-dimensional (2D) image projected from a first omni-directional image, by setting points on the first omni-directional image, which intersect a straight line passing through a first position that is a center of the first omni-directional image and a second position that is a center of a second omni-directional image, to a first pole and a second pole, generating a second 2D image projected from the second omni-directional image, by setting points on the second omni-directional image, which intersect the straight line passing through the first position and the second position, to a third pole and a fourth pole, and generating a third 2D image corresponding to a 2D image projected from a third omni-directional image centered in a third position between the first position and the second position, based on the first 2D image and the second 2D image.Type: ApplicationFiled: June 13, 2018Publication date: December 20, 2018Inventors: Ji-Hwan Woo, Byeong-Doo Choi, Eric Yip
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Publication number: 20180329482Abstract: A method for processing virtual reality (VR) content by a content providing device includes identifying cartesian coordinates of a first position on the VR content, estimating a movement of a user of the content providing device, identifying cartesian coordinates of a second position by applying a matrix representing the estimated movement of the user to the cartesian coordinates of the first position, converting the cartesian coordinates of the second position into spherical coordinates of the second position, and providing an area corresponding to the spherical coordinates of the second position to the user.Type: ApplicationFiled: April 30, 2018Publication date: November 15, 2018Inventors: Ji-Hwan Woo, Byeong-Doo Choi
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Publication number: 20180286109Abstract: Methods and apparatuses are provided for transmitting information about an omni-directional image based on user motion information by a server. Motion parameters are received from an apparatus worn by a user for displaying an omni-directional image. User motion information is generated based on the received motion parameters. First packing information corresponding to a user position is generated based on the user motion information. Second packing information corresponding to a position in close proximity to the user position is generated based on the user motion information. Third packing information is generated based on the first packing information and the second packing information At least one of the first packing information, the second packing information, and the third packing information is transmitted to the apparatus.Type: ApplicationFiled: March 28, 2018Publication date: October 4, 2018Inventors: Ji-Hwan WOO, Eric YIP, Byeong-Doo CHOI, Dong-Wook KWON
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Publication number: 20180068489Abstract: A server is disclosed. A server for providing a content to a user terminal device providing a virtual reality service comprises: a communication unit for performing communication with at least one source device and the user terminal device; and a processor for, when a content transmission request for a preconfigured location is received from the user terminal device, receiving a content photographed in a real time from a source device of the preconfigured location on the basis of location information received from at least one source device, and providing the content to the user terminal device.Type: ApplicationFiled: December 3, 2015Publication date: March 8, 2018Inventors: Do-wan KIM, Ji-hwan WOO, Han-il YU
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Publication number: 20180003969Abstract: A master device providing an image to a slave device providing a virtual reality service is provided. The master device includes: a content input configured to receive an input stereoscopic image; a communicator configured to perform communication with the slave device providing the virtual reality service; and a processor configured to determine a viewpoint region corresponding to a motion state of the corresponding slave device in the input stereoscopic image on the basis of motion information received from the slave device and control the communicator to transmit an image of the identified viewpoint region to the slave device.Type: ApplicationFiled: December 3, 2015Publication date: January 4, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Hwan WOO, Do-wan KIM, Han-il YU
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Patent number: 9357117Abstract: A photographing device includes a photographing unit, an image processor which separates an object from a first photographing image obtained by the photographing unit, a display which displays a background live view obtained by superimposing the separated object on a live view of a background, and a controller which obtains a second photographing image corresponding to the live view of the background when a command to shoot the background is input and generates a composite image based on the separated object and the second photographing image.Type: GrantFiled: December 19, 2013Date of Patent: May 31, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Hwan Woo, Se-Hoon Kim, Tae-gyu Lim, Han-tak Kwak, Woo-sung Shim, Seo-young Lee
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Publication number: 20160127624Abstract: A wearable device that is configured to be worn on a body of a user and a control method thereof are provided. The wearable device includes an image projector configured to project a virtual user interface (UI) screen, a camera configured to capture an image, and a processor configured to detect a target area from the image captured by the camera, control the image projector to project the virtual UI screen, which corresponds to at least one of a shape and a size of the target area, onto the target area, and perform a function corresponding to a user interaction that is input through the virtual UI screen.Type: ApplicationFiled: June 4, 2015Publication date: May 5, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Hwan WOO, Won-hee CHOE
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Patent number: 9304653Abstract: A method of creating a three-dimensional (3D) image based on user interaction, the method including receiving an input image; receiving a user input; segmenting an object, which is included in the input image, based on the received user input; editing an area of the segmented object; configuring a layer for the segmented object, based on the edited area; and creating a 3D image, based on the configured layer.Type: GrantFiled: February 8, 2013Date of Patent: April 5, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bernard Moon, Se-Hoon Kim, Woo-sung Shim, Soo-chahn Lee, Han-tak Kwak, Myung-jin Eom, Ji-hwan Woo